Study on Refining Water Extract ofBushen Yangxue Granules by Chitosan Flocculation / 中国中医药信息杂志

Objective To optimize refinement of water extract from Bushen Yangxue Granules by chitosan flocculation.Methods According to the content of icariin detected by HPLC, the waters amount, extraction time and extraction times were evaluated by orthogonal design. The effects of the solution concentration, clarifying temperature and the amount of clarifying agent on the flocculation clarification processes were optimized with the content of icariin and polysaccharides.Results The optimum water extraction processes A2B1C3 were follows: 10 times amount of water, three times extraction and 1 h for each extraction process. The optimized flocculation clarification processes A1B2C3 were as follows: solution concentration was 0.4 g/mL, the clarifying temperature was 40℃ and the addition of chitosan was 0.1%.Conclusion The optimized refining process is stable and feasible.

Experimental study on antitumor effects of extracts from Actinidia argutaor / 中国中药杂志

<p><b>OBJECTIVE</b>To observe the inhibitory effect of extract from Actinidia argutaor on in vivo and in vitro carcinomata, and explore its mechanism.</p><p><b>METHOD</b>The in vivo S180 and H22 model were used to observe the effect of A. argutaor on inhibitory rate of carcinomata, organ relative weight of spleen and thymus gland and the release of tumor necrosis factor. A549 cells were exposed to extract from A. argutaor with different concentrations for 24, 48, 72 hours. MTT assay was used to evaluate the inhibiting effects of extract from A. argutaor on the proliferation of the cells. Flow cytometry was applied to detect cell cycle.</p><p><b>RESULT</b>The inhibitory effects of the extracts on in vivo and in vitro carcinomata were observed, the inhibitory rate for S180 and H22 line was 33.32% and 34.62% respectively. The extracts could inhibit the proliferation of A549 cells during G0-G1 period and significantly decrease the cell ratio of S stage.</p><p><b>CONCLUSION</b>The extracts from A. argutaor showed a good antineoplastic activity.</p>

Determination of evodiamine and rutaecarpine of compound Wuzhuyu cataplasm in plasma by SPE-HPLC: application to its pharmacokinetics / 中国中药杂志

<p><b>OBJECTIVE</b>To establish a SPE-HPLC method for the determination and pharmacokinetic study of evodiamine and rutacarpine in rat plasma.</p><p><b>METHOD</b>A Kromasil C18 column (4.6 mm x 250 mm, 5 microm) was used with acetonitrile-water-tetrahydrofuran-acetic acid (51:48:1:0.1) as a mobile phase and at a flow rate of 1 mL x min(-1), and the UV detection was at 225 nm. The column temperature was 35 degrees C. After the analytes were extracted from the plasma of rats by solid phase extraction (SPE), the content of evodiamine and rutaecarpine was measuared by HPLC method using halcinonide as an internal standard solution.</p><p><b>RESULT</b>After transdermal administration to rats, the pharmacokinetic behavior of evodiamine and rutaecarpine belongs to the one-compartment model. The main pharmacokinetic parameters was as follows: K(a) 0.224 h(-1) and 0.220 h(-1), K(e) 0.114 h(-1) and 0.118 h(-1), C(max) 0.211 mg x L(-1) and 0.272 mg x L(-1), T(peak) 6.132 h and 6.102 h, respectively.</p><p><b>CONCLUSION</b>The method in this study is simple, rapid and sensitive. It is proved to be suitable for pharmacokinetic study of evodiamine and rutaecarpine.</p>

Study on vitro release and transdermal behaviors of Yulian cataplasm / 中国中药杂志

<p><b>OBJECTIVE</b>To investigate the regularity of Yulian Cataplasm in vitro release and transdermal behaviors.</p><p><b>METHOD</b>Improved Franz diffusion devices was used with four index ingredients as evodiamine, rutaecarpine, palmatine and berberine that were determined by HPLC in one mobile phase.</p><p><b>RESULT</b>The release rates of evodiamine, rutaecarpine, palmatine and berberine were 0.0239, 0.0156, 0.0725, 0.8191 mg x cm(-2) x h(-1/2), respectivley. The transdermal rates of evodiamine, rutaecarpine, palmatine and berberine were 1.256, 1.0302, 2.8029, 20.919 microg x cm(-2) x h(-1), respectively.</p><p><b>CONCLUSION</b>The releasing process of all index is in accordance with Higuchi equation and the transdermal proccess is in accordance with zero-level equation.</p>

Study on the Quality Control of Yinpian of Isatis Root / 国际中医中药杂志

Objective To study the quality control of yinpian of Isatis Root.Methods Optical microscope was used to identify the microscopic features,TLC was adopted to identify the arginine in Isatis Root,and HPIC-ELSD was used to detect the quality of arginine.Results and Conclusion There is no difference between yinpian and crude powder of Isatis Root.Arginine can be detected bv TLC.The moisture contents.the total ash contents and the acid-insoluble ash contents in the yinpian should be less than 9.0%,10.0%,and 2.0% respectively;while the alcohol-soluble extractive contents and the contents of arginine in Isatis Root should be more than 25.0% and 2.01% respectively.

Determination of Water Soluble Components in Salvia miltiorrhiza Bge. by HPLC / 中国中医药信息杂志

Objective To establish a method for determination of the water-soluble components of Salvianolic acid B,Danshensu and Protocatechuic aldehyde in Salvia miltiorrhiza Bge. Method Chromatography was performed on Kromosil C18 (4.6 mm?250 mm,5 ?m). Mobile phase Ⅰ was methanol-acetonitrile-formicacid-water (30∶10∶1∶59),mobile phase Ⅱ was methanol-acetic acid-water (20∶1∶80),the flow rate was 1.0 mL/min,the detection wavelength was set at 286 and 280 nm,column temperature was 35 ℃. Result Determined 10 different habitats Salvia miltiorrhiza Bge.,the average content of Salvianolic acid B was 0.09%～6.81%,the average recovery was 99.64%,RSD=1.09%. The average content of Danshensu was 0.16%～0.68%,the average recovery was 98.94%,RSD=1.49%. The average content of Protocatechuic aldehyde was 0.01%～0.09%,the average recovery was 98.96%,RSD= 1.66%. Conclusion The method is accurate and reliable with good reproducibility,and can be used as determination standard for Salvia miltiorrhiza Bge.